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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12777845 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Apr. 04, 2023

Light-emitting device with first compound having electron-transport property

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Inventors:

Satoko Numata, Atsugi, JP;

Harue Osaka, Atsugi, JP;

Sachiko Kawakami, Atsugi, JP;

Takashi Shingu, Atsugi, JP;

Anna Tada, Isehara, JP;

Yui Yoshiyasu, Atsugi, JP;

Yasuhiro Niikura, Komae, JP;

Eriko Aoyama, Atsugi, JP;

Naoaki Hashimoto, Sagamihara, JP;

Satoshi Seo, Sagamihara, JP;

Assignee:

SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Kanagawa-ken, JP;

Attorneys:

NIXON PEABODY LLP

Jeffrey L. Costellia

Primary Examiner:

Norman D Richards

Assistant Examiner:

Sean Ayers Winters

Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/16 (2023.01); H10K 85/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); H10K 85/342 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 50/16 (2023.02); H10K 85/6574 (2023.02);
Abstract

An organic semiconductor device that can achieve high resolution and favorable reliability is provided. The organic semiconductor device is one of a plurality of light-emitting devices formed over an insulating layer, which includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode. The organic compound layer includes a layer containing a first compound. When differential scanning calorimetry is performed on the first compound in such a manner that a cooling step is performed from the state in which the first compound is melted in a first heating step and a second heating step is successively performed, an exothermic peak is not observed in the cooling step and an exothermic peak and a melting point peak are not observed in the second heating step.

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Numata, Satoko. (2026). Light-emitting device with first compound having electron-transport property (U.S. Patent No. 12777845). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12777845

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